A method for preparing a universal microbial medium by eutectic system-based cellulose liquefaction. The method includes: 1) mixing ionic liquid and cellulose, where the ionic liquid is preheated; 2) mixing a mixed solution I obtained in step 1) and distilled water; 3) filtering a mixed solution II obtained in step 2); and 4) diluting a filtrate obtained in step 3) with the distilled water to obtain the carbon source. A medium prepared from the carbon source can be used for culturing various microorganisms, with a desirable growth state of the microorganisms.

Described herein is a synergistic combination comprising a quorum-sensing inhibitor and/or postbiotic metabolite and an antibiotic. Typically, the postbiotic metabolite comprises at least one peptide. Related compositions, uses, and methods are also described, including methods for resensitizing resistant bacteria to an antibiotic, and methods of treating antibiotic-resistant infections, such as methicillin-resistant Staphylococcus aureus (MRSA).

A method of treating or preventing mastitis in a bovine animal comprising administering to the animal a therapeutically effective amount of particular microbes thereby treating or preventing mastitis in the animal.

Microorganisms capable of effectively decompose hardly decomposable thermoplastic polyurethane, a method for decomposing thermoplastic polyurethane, and a method for selecting microorganisms capable of decomposing thermoplastic polyurethane are provided.

The method for selecting microorganisms capable of decomposing thermoplastic polyurethane includes a step of burying in soil a mixed sample of thermoplastic polyurethane having urea bond and polyurethane without urea bond and a step of collecting the microorganism adsorbing to the mixed sample after confirming the urethane decomposition by infrared spectroscopic analysis of the buried mixed sample.

The present invention relates to the selective antimicrobial use of Micrococcus porci against harmful Staphylococcus sp. A composition comprising Micrococcus porci, or a lysate, culture or extract thereof, as an active ingredient, exhibits selective antimicrobial activity against harmful Staphylococcus sp., in particular, Staphylococcus aureus, Methicillin resistance Staphylococcus aureus (MRSA), and Staphylococcus capitis, and thus can be used as antimicrobial compositions in various field such as cosmetics, quasi-drugs, external skin preparations, or medicines.